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Numerical analysis of transport phenomena for designing of ejector in PEM forklift system
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Hosseinzadeh, Elham, Rokni, Masoud, Jabbari, Masoud and Mortensen, Henrik (2014) Numerical analysis of transport phenomena for designing of ejector in PEM forklift system. International Journal of Hydrogen Energy, 39 (12). pp. 6664-6674. doi:10.1016/j.ijhydene.2014.02.061 ISSN 0360-3199.
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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2014.02.061
Abstract
In the present study, Computational Fluid Dynamics (CFD) technique is used to design an ejector for anode recirculation in an automotive PEMFC system. A CFD model is firstly established and tested against well-documented and relevant solutions from the literature, and then used for different ejector geometries under different operating conditions. Results showed that a single ejector with optimized geometry cannot cover the required recirculation in the entire range of the fuel cell current. Having two ejectors for different ranges of currents is thus proposed as an alternative solution in which the system can better take the advantage of ejectors for recirculation purpose. In addition, the operating mode of one variable nozzle ejector has been investigated and compared with aforementioned cases. The results showed that the variable nozzle ejector can work in the same operational mode as in the case with two ejectors. However, in practice, the latter one needs a more complicated control system and it is more difficult to manufacture.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Journal or Publication Title: | International Journal of Hydrogen Energy | ||||||
Publisher: | Elsevier BV | ||||||
ISSN: | 0360-3199 | ||||||
Official Date: | 14 April 2014 | ||||||
Dates: |
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Volume: | 39 | ||||||
Number: | 12 | ||||||
Page Range: | pp. 6664-6674 | ||||||
DOI: | 10.1016/j.ijhydene.2014.02.061 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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